.nav{display: flex;align-items: center;}
.nav_box{display: flex;}
.nav_item{display:flex;align-items: center;color:#4b4c4d;font-size:16px;font-weight: bold;position:relative;height:80px;padding:0 12px;}
.nav_box_item{}
.nav_box_item_name{display:flex;justify-content:center;align-items: center;cursor: pointer;}
.nav_box_name{padding-right:4px;}
.nav_box_arrow{font-size:16px;}
.nav_box_item:hover .nav_box_item_name,.sign_item:hover{color:#007AFF;}
.nav_box_item:hover .nav_box_arrow,.language:hover .language_icon{transform:rotate(90deg);}
/*nav*/
.nav_more{position:absolute;top:80px;left:50%;width:920px;background:#fff;transform:translateX(-50%);border:4px solid rgba(0,122,255,0.25);border-top:0;z-index: 9;}
.nav_more_nav{background:#f5f5f5;display:flex;}
.nav_more_nav_item{flex:1;display:flex;height:48px;justify-content: center;align-items: center;border-bottom:1px solid #ddd;}
.nav_more_nav_item_active{background:#fdfdfd;border-color:#fdfdfd;}
.nav_more_content{padding:12px;max-height:480px;overflow:auto;}
.nav_more_content_section{}
.nav_more_content_title{background:#fafafa;border-bottom:1px solid #eee;color:#007AFF;height:40px;padding:0 12px;display:flex;align-items: center;font-weight:normal;}
.nav_more_content_box{font-weight: normal;display:flex;align-items: center;flex-wrap: wrap;}
.nav_more_content_item{display:flex;align-items: center;font-size:14px;height:40px;width:20%;padding:0 12px;box-sizing: border-box;cursor: pointer;}
.nav_down_item:hover,.nav_more_content_item:hover,.language_list_item:hover{background:rgba(0,122,255,0.25)}
.nav_more_content_icon{background:no-repeat center;background-size:cover;width:16px;height:16px;border-radius:50%;border:solid 1px #ccc;}
.nav_more_content_name{font-weight: bold;color:#333;padding-left:4px;}
.nav_more_content_name span{font-weight: normal;color:#ccc;padding:0 4px;}
.nav_more_content_chart{color:#ccc;}
/*down*/
.nav_down{position:absolute;left:50%;transform: translateX(-50%);border:4px solid rgba(0,122,255,0.25);border-top:0;z-index: 9;width:180px;top:80px;background:#fff;font-size:14px;}
.nav_down_item{height:40px;display: flex;justify-content: center;align-items: center;cursor:pointer;}
/*登录注册*/
.sign{display: flex;align-items: center;}
.sign_item{padding:0 12px;cursor: pointer;}
/*多语言*/
.language{cursor:pointer;position:relative;}
.language_name{}
.language span{padding-right:4px;}
.language_icon{}
.language_list{min-width:160px;overflow:hidden;position:absolute;top:80px;right:0;z-index: 9;background:red;background:#fff;border:4px solid rgba(0,122,255,0.25);border-top:0;padding:6px 0;border-radius:0 0 5px 5px;box-sizing:border-box;}
.language_list_item{height:40px;display:flex;align-items: center;justify-content: center;padding:0 12px;white-space: nowrap;font-weight:normal;}